FR1103067A - adjustable length prop for construction, mining and other applications - Google Patents

adjustable length prop for construction, mining and other applications

Info

Publication number
FR1103067A
FR1103067A FR1103067DA FR1103067A FR 1103067 A FR1103067 A FR 1103067A FR 1103067D A FR1103067D A FR 1103067DA FR 1103067 A FR1103067 A FR 1103067A
Authority
FR
France
Prior art keywords
mining
applications
construction
adjustable length
prop
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Henri-Marie-Georges Helain
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR1103067A publication Critical patent/FR1103067A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/58—Devices for setting props or chocks
    • E21D15/581—Devices for setting props or chocks in which the props are pre- loaded

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR1103067D 1954-04-13 1954-04-13 adjustable length prop for construction, mining and other applications Expired FR1103067A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1103067T 1954-04-13

Publications (1)

Publication Number Publication Date
FR1103067A true FR1103067A (en) 1955-10-28

Family

ID=9622009

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1103067D Expired FR1103067A (en) 1954-04-13 1954-04-13 adjustable length prop for construction, mining and other applications

Country Status (1)

Country Link
FR (1) FR1103067A (en)

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